Vehicle-wheel rim



W. GRIKSCHEIT.

VEHICLE WHEEL RIM.

APPLICATION FILED SEPT. I6, ISIS.

W. GRIKSCHEIT.

vEHlcLE WHEEL RIM.

AP'PLICATION FILED SEPT.16, 1918.

Patented July 27, 1920.

2 SHEETS--SHEET 2.

UNITED STATES PATENT OFFICE.

WILLIAM` GItIIrscHErr, or DETROIT, MICHIGAN.

vEHIoLn-WHEEL RIM.'

To all whom it may concern.'

Be it known that I, WILLIAM GRIKsoHErr,

a citizen of the United States of America,

-ing a side portion removable to facilitate mounting and demounting of a tire. The 1nvention consists in the'novel means employed to hold the removable portion in place upon the rim proper and in certain details of construction and arrangements and combinations of parts as will more fully hereinafter appear.

In the accompanying drawings:

Figure l is a View of the invention partly in Side elevation and partly in section;

Fig.2 is an enlar ed view Yof the tire-receiving face of vsai rim showing theV engagement of the removable -k memberJ therewith;

Fig. 3 is a cross sectional View taken on line 3-3 of Fig. 2;

Fig. 4: is a Viewv similar to Fig. 2, but

showing the removable memberV detached from the rim proper;

Fig. 5 1s aview` of the tire-receiving surface of a modified form of the invention, the

line 6--6 of Fig. 5;

Fig. 7 is a circumferential sectional view-` taken' on line 7 7 of Fig. 5;

Fig. 8 is a view similar to Fig. 5, but showing the removable member detached from the rim proper; n l f Fig. 9 is a fragmentary viewof the 'tread surface of another modification ,of the invention;

Fig. 10 is a cross-sectional view of the same taken on line 10-10 of Fig. 9;

Fig. 11 is a view similar to Fig. 9, but showing the removableV member detached from the rim proper.

In these views the reference character 1 designates the rim of a vehicle wheel, said rim being formed with the usual integral tire-retaining flanges 2 at each side thereof. A circumferentially-extending portion 3 is one embodiment of specification o'f Letters Patent. Patented July 27, 1920,

Application medseptember-Ie, 191s. serial No. 254,196.

tailed engagement with the rim proper as is indicated at 4, the member 3 thus being restrained against lateral displacement. .To form a seat for the-detachable member, substantiallyrtriangular plates 5 are riveted to the rim properA at the extremities of the opening therein, which receives'the member 3 and at a circumferentially spaced series of points bordering the, edge of said opening. Each of the plates 5- has a portion projecting beneath the opening receiving the member 3, said portions jointly constituting a seatfor said detachable member. The end members 5 are formed with radially-projecting rectangular lugs 6 adapted to be inserted Y in similarly Y'shaped openings 7 in the end portions o'f the member 3. Each of the intermediately disposed plates 5 is formed with a radially-projecting pin 8V adaptedto be inserted in an opening 9 in the member 3, the openings 9 being slightly elongated circumferentially of the rim to allow a slight circumferential play of' said member 3, whereby it may be engaged with the lugs 6 after the pins 8 have beeninserted in said openings 9. The orifice y1() for the valve stem of the tire is located preferably in the rim proper at a point diametrically opposite the center of the removable memberA 3 so that in demounting a tire, the portion'thereof normally engaging the detachable member 3 may first be displaced from the rim properV and the valve stem then removed from said orifice, while in mounting a tire, the stem may be inserted in said orifice and the opposite portion'then placed upon the portion of therim proper from which the member 3 has been detached.v 'i

In the modified form of the invention disiclosed in Figs. 5 to 8 inclusive the reference detachable member l2 may seat upon said edge 14 in a iush relation to the rim proper. A series of circumferentially spaced rivets 15 is carried by the member 12, which rivets are fiush with the outer surface of said member, but have semi-spherically projecting heads 15 projecting beyond the inner face of said member, said ,heads being nsertible in openings 16 formed in the seat 14, the engagement of said heads with said seat coacting with the dove-tailed connection at the ends of the detachable member to restrain.

said member against lateral ielding.

f In the third modification o the invention, which is disclosed in Figs. 9, 10 and 11, the rim proper ris indicated at 17 and the detachable side portion at 18. In this construction a kseries of dove-tailed interlocks `is formed by projections 19 upon the member 18 entering openings 20 formed in the member 17,

and a seat forl the detachable member 18 is scribed, the connections between the remov- 'bility able members and the rim proper established by the pins 8 entering the openings 9 and by the rivets 15 entering the openings 16 serve to prevent the intermediate part of the detachable member from yielding laterally despite the restraint exerted upon the dovetailed ends of said member, while `in the third form of the invention, the continuous series of dove-tailed -interlocks restrains the detachable member against yielding both terminally and intermediately.

It is a vfeature of each of the above-described rim constructions that the joint be- Y tween the y,detachable section and the rim proper is not near the circumferential center line of the rim, so that the shoe or casing of a tire rather than the inner tube thereof will overlie the joint and there will be no possithe joined members of the rim.

f It is also a feature of each embodiment of Fig. 1, several of-these of theV tube being pinched between the invention that the fastening devices carried by the sectional portion of the rim are balanced by correspondingly located weights secured to or formed integral with the unbroken portion of Vthe rim, this provision being further advantageous in giving the rim a symmetrical appearance. Thus in lbalancing projections are indicated at 22.

Y In engaging or disengagingv the detach-- able member from therim proper in any of the several modifications the detachable member may be sprung slightly to allow the necessary successive engagement ofthe cir-f cumferential series of interlocks.

WhatjI claim as my invention is: V f c 1. The combination witha rim proper, ofl a member circumferentially `extending at one side of the rim proper, and forming a detachable portion of the rim, the extr'emi-V .i

ties of said member having a dove-tailed engagement with thej rim proper, members,

carried by the rim proper adjacentvthe eX- tremities of the detachable member engaging apertures respectively formed. in said. extremities, and members intermediately carried by the rim proper engaging circumferentially slotted apertures in the detachable member-whereby said member ispermitted a circumferential play to allow vengagement ofthe end members subsequent to Ehe engagement of the intermediate memers. Y Y 2. The combination with an annular'. rim proper having anopening 'at one side thereof and a detachable rim section fittingin said opening, of a pluralityl of devices securing said section to the rim proper, and correspondingly located weights upon the unbroken portion of the rim proper counterbalancing said fastening devices..

13. The combination with a rim proper, of a member circumferentially extending at one side of the rim proper and forminga detachable portion of the rim, the extremi-` ties of said member having a dove-tailed engagement with the rim proper, and means'- intermediately and terminally'interengaging the detachable member andrim proper, the intermediate means permitting a relative circumferential play to allow subsequent engagement of the terminal means.

In testimoli; whereof I affix m 'si nature.

ILLIAM GRIK CI- EIT. j 

